Myanmar's prolonged political crisis presents a significant challenge to theories of democratization and democratic consolidation. Despite periods of parliamentary government, political liberalization, competitive elections, and civilian administration, Myanmar has repeatedly failed to establish durable democratic governance. The military coup of 1 February 2021 demonstrated the fragility of the country's democratic transition, but the coup should not be regarded as the sole explanation for democratic failure. This article argues that Myanmar's inability to consolidate democracy is rooted in a set of interconnected structural conditions: entrenched military power, constitutional constraints on civilian authority, protracted ethnic conflict, and the absence of a genuinely federal political settlement. Drawing on democratic consolidation theory, civil-military relations theory, and federal and power-sharing approaches to divided societies, the article employs a qualitative case-study methodology based on documentary analysis and scholarly literature. It examines Myanmar's political development from independence through the democratic opening of 2011–2020 and the military takeover of 2021. The analysis demonstrates that the 2008 Constitution institutionalized a political role for the military, including guaranteed parliamentary representation and control over key security ministries, while creating substantial barriers to constitutional reform. At the same time, longstanding conflicts between the Bamar-dominated central state and ethnic nationalities remained unresolved. The failure to establish meaningful federalism prevented the emergence of an inclusive constitutional settlement and contributed to persistent mistrust between the centre and ethnic political actors. The article argues that military power and ethnic conflict have reinforced one another: conflict has been used to justify military centralization, while centralized military rule has reproduced grievances and resistance. The experience of Myanmar demonstrates that elections and civilian government alone cannot consolidate democracy where unelected institutions retain autonomous coercive power and where fundamental questions of state structure and ethnic inclusion remain unresolved. Sustainable democratization therefore requires civilian supremacy over the military, comprehensive constitutional reform, meaningful federalism, minority representation, and a negotiated political settlement to the country's longstanding conflicts.